A previous study used aggregate (region-level) data to investigate whether home health care serves as a substitute for inpatient hospital care, and concluded that “there is no evidence that services provided at home replace hospital services.” However, that study was based on a cross-section of regions observed at a single point of time, and did not control for unobserved regional heterogeneity.
We develop a structural demand model that endogenously captures the effect of out-of-stocks on customer choice by simulating a time-varying set of available alternatives. Our estimation method uses store-level data on sales and partial information on product availability. Our model allows for flexible substitution patterns, which are based on utility maximization principles and can accommodate categorical and continuous product characteristics.
Suresh Sundaresan offers several insights on the development of financial markets in Asia and the Pacific. First, financial market development in the region should take account of the large number of households who are effectively unbanked, given the potential for positive feedback effects between financial markets, economic growth and stability. Second, there is a need for fundamental banking reforms of capital structures and liquidity sources to mitigate bankruptcy risks, as well as the cost to taxpayers of insolvency and bailouts.
In this paper, we measure the extent to which subjective and objective evaluations of new teachers in New York City can predict their future impacts on student achievement. Specifically, we examine evaluations of applicants to an alternative certification program, evaluations of new teachers by mentors that work with them during their first year, and evaluations based on student achievement data from their first year of teaching. We use a large sample, relative to prior work, and, unlike other studies (with the exception of John H. Tyler et al.
Prices are typically used as proxies for countries' export quality. I relax this strong assumption by exploiting both price and quantity information to estimate the quality of products exported to the U.S. Higher quality is assigned to products with higher market shares conditional on price. The estimated qualities reveal substantial heterogeneity in product markets' scope for quality differentiation, or their "quality ladders." I use this variation to explain the heterogeneous impact of low-wage competition on U.S. manufacturing employment and output.
In December 2004, the Financial Accounting Standards Board (FASB) mandated the use of a fair value-based measurement attribute to value employee stock options (ESOs) via Financial Accounting Standard (FAS) 123-R. In anticipation of FAS 123-R, between March 2004 and November 2005, several firms accelerated the vesting of ESOs to avoid recognizing existing unvested ESO grants at fair value in future financial statements.
In a recent paper, Ichino and Moretti (2009) present evidence from a large Italian bank that much of the gap in absenteeism between women and men can be explained by absences with a 28-day cycle. These cyclical absences are interpreted as an effect of menstruation which can explain 14% of the gender earnings gap. While the health consequences of menstruation are undeniable, the general importance of menstruation in explaining gender gaps in absenteeism and earnings is unclear.
We find that fixed effects related to the location of firm's headquarters explain variation in broad based option grants after controlling for industry effects and firm characteristics traditionally known to affect option granting. Location matters because of local labor market conditions and social interaction with neighboring firms.